| 摘要 |
<p>The invention relates to a synthetic crystalline zeolite of the MTW type characterized by: a) the approached general formula: M2/nO, Al3, xSiO2 wherein M is a metal cation and/or proton, n is the valence of M, x is a number comprised between 14 and 200, b) a diagram of diffraction of X rays represented in table (I) of the description, c) a fluorine content comprised between 0.005 and 2 % by weight, said zeolite having been synthetized in a fluoride medium under stirring condition</p> |
